Skeptical at first, but my husband and I took up the Free boiler offer as our boiler was destined for the graveyard. 7elevenPlumbers installed the Ravenheat 31kw combi. The boiler was free as per the offer so we only had to pay for the labour to replace it. We live in Egham, Surrey and it was not easy to find a local plumber, so we had to go to a national supplier but were very disappointed with the over charging of the job. We saved thousands over the national supplier quote and have a 5 year warranty in place. The job has taken a day and half and we are really pleased with the result and delivery of service.